| /* |
| * This file is part of the flashrom project. |
| * |
| * Copyright (C) 2007, 2008 Carl-Daniel Hailfinger |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| */ |
| |
| #ifndef __SPI_H__ |
| #define __SPI_H__ 1 |
| |
| /* |
| * Contains the generic SPI headers |
| */ |
| |
| #define JEDEC_MAX_ADDR_LEN 0x04 |
| |
| /* Read Electronic ID */ |
| #define JEDEC_RDID 0x9f |
| #define JEDEC_RDID_OUTSIZE 0x01 |
| /* INSIZE may be 0x04 for some chips*/ |
| #define JEDEC_RDID_INSIZE 0x03 |
| |
| /* Some Atmel AT25F* models have bit 3 as don't care bit in commands */ |
| #define AT25F_RDID 0x15 /* 0x15 or 0x1d */ |
| #define AT25F_RDID_OUTSIZE 0x01 |
| #define AT25F_RDID_INSIZE 0x02 |
| |
| /* Read Electronic Manufacturer Signature */ |
| #define JEDEC_REMS 0x90 |
| #define JEDEC_REMS_OUTSIZE 0x04 |
| #define JEDEC_REMS_INSIZE 0x02 |
| |
| /* Read Electronic Signature */ |
| #define JEDEC_RES 0xab |
| #define JEDEC_RES_OUTSIZE 0x04 |
| /* INSIZE may be 0x02 for some chips*/ |
| #define JEDEC_RES_INSIZE 0x01 |
| |
| /* Write Enable */ |
| #define JEDEC_WREN 0x06 |
| #define JEDEC_WREN_OUTSIZE 0x01 |
| #define JEDEC_WREN_INSIZE 0x00 |
| |
| /* Write Disable */ |
| #define JEDEC_WRDI 0x04 |
| #define JEDEC_WRDI_OUTSIZE 0x01 |
| #define JEDEC_WRDI_INSIZE 0x00 |
| |
| /* Chip Erase 0x60 is supported by Macronix/SST chips. */ |
| #define JEDEC_CE_60 0x60 |
| #define JEDEC_CE_60_OUTSIZE 0x01 |
| #define JEDEC_CE_60_INSIZE 0x00 |
| |
| /* Chip Erase 0xc7 is supported by SST/ST/EON/Macronix chips. */ |
| #define JEDEC_CE_C7 0xc7 |
| #define JEDEC_CE_C7_OUTSIZE 0x01 |
| #define JEDEC_CE_C7_INSIZE 0x00 |
| |
| /* Block Erase 0x52 is supported by SST and old Atmel chips. */ |
| #define JEDEC_BE_52 0x52 |
| #define JEDEC_BE_52_OUTSIZE 0x04 |
| #define JEDEC_BE_52_INSIZE 0x00 |
| |
| /* Block Erase 0xd8 is supported by EON/Macronix chips. */ |
| #define JEDEC_BE_D8 0xd8 |
| #define JEDEC_BE_D8_OUTSIZE 0x04 |
| #define JEDEC_BE_D8_INSIZE 0x00 |
| |
| /* Block Erase 0xd7 is supported by PMC chips. */ |
| #define JEDEC_BE_D7 0xd7 |
| #define JEDEC_BE_D7_OUTSIZE 0x04 |
| #define JEDEC_BE_D7_INSIZE 0x00 |
| |
| /* Block Erase 0xdc is supported by Spansion chips, takes 4 byte address */ |
| #define JEDEC_BE_DC 0xdc |
| #define JEDEC_BE_DC_OUTSIZE 0x05 |
| #define JEDEC_BE_DC_INSIZE 0x00 |
| |
| /* Sector Erase 0x20 is supported by Macronix/SST chips. */ |
| #define JEDEC_SE 0x20 |
| #define JEDEC_SE_OUTSIZE 0x04 |
| #define JEDEC_SE_INSIZE 0x00 |
| |
| /* Read Status Register */ |
| #define JEDEC_RDSR 0x05 |
| #define JEDEC_RDSR_OUTSIZE 0x01 |
| #define JEDEC_RDSR_INSIZE 0x01 |
| |
| /* Status Register Bits */ |
| #define SPI_SR_WIP (0x01 << 0) |
| #define SPI_SR_WEL (0x01 << 1) |
| #define SPI_SR_ERA_ERR (0x01 << 5) |
| #define SPI_SR_AAI (0x01 << 6) |
| |
| /* Write Status Enable */ |
| #define JEDEC_EWSR 0x50 |
| #define JEDEC_EWSR_OUTSIZE 0x01 |
| #define JEDEC_EWSR_INSIZE 0x00 |
| |
| /* Write Status Register */ |
| #define JEDEC_WRSR 0x01 |
| #define JEDEC_WRSR_OUTSIZE 0x02 |
| #define JEDEC_WRSR_INSIZE 0x00 |
| |
| /* Read the memory */ |
| #define JEDEC_READ 0x03 |
| #define JEDEC_READ_OUTSIZE 0x04 |
| /* JEDEC_READ_INSIZE : any length */ |
| |
| /* Write memory byte */ |
| #define JEDEC_BYTE_PROGRAM 0x02 |
| #define JEDEC_BYTE_PROGRAM_OUTSIZE 0x05 |
| #define JEDEC_BYTE_PROGRAM_INSIZE 0x00 |
| |
| /* Write AAI word (SST25VF080B) */ |
| #define JEDEC_AAI_WORD_PROGRAM 0xad |
| #define JEDEC_AAI_WORD_PROGRAM_OUTSIZE 0x06 |
| #define JEDEC_AAI_WORD_PROGRAM_CONT_OUTSIZE 0x03 |
| #define JEDEC_AAI_WORD_PROGRAM_INSIZE 0x00 |
| |
| /* Error codes */ |
| #define SPI_GENERIC_ERROR -1 |
| #define SPI_INVALID_OPCODE -2 |
| #define SPI_INVALID_ADDRESS -3 |
| #define SPI_INVALID_LENGTH -4 |
| #define SPI_FLASHROM_BUG -5 |
| #define SPI_PROGRAMMER_ERROR -6 |
| #define SPI_ACCESS_DENIED -7 |
| |
| void clear_spi_id_cache(void); |
| |
| #endif /* !__SPI_H__ */ |
